Mixed Generalized Gaussian Noise Channels: Capacity, Decoding, and Performance

Conference: SCC 2015 - 10th International ITG Conference on Systems, Communications and Coding
02/02/2015 - 02/05/2015 at Hamburg, Germany

Proceedings: ITG-Fb 254: 10th International ITG Conference on Systems, Communications and Coding (SCC 2015)

Pages: 6Language: englishTyp: PDF

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Authors:
Sparrer, Susanne; Fischer, Robert F. H. (Institute of Communications Engineering, Ulm University, 89081 Ulm, Germany)

Abstract:
In many different fields of communications such as sonar applications and Compressed Sensing, a growing interest in non-Gaussian channel models has been observed. One model of high interest is the so-called generalized Gaussian noise, which is often used to model impulsive events. In this paper, a survey of the properties of (mixed) additive white generalized Gaussian noise channels is given. The log-likelihood ratios are derived and connections to conventional LLR calculation are pointed out. We also discuss the capacity and give an upper and a lower bound for it. It is shown that the gain achievable by channel coding strongly depends on the parameters of the generalized Gaussian noise.